KR20090029561A - Wrist type watch for sensing pulse wave - Google Patents

Abstract

A wrist type pulse wave detection watch is provided to reduce noise due to shaking of a signal line of a piezoelectric pulse wave sensor by pressing the radial artery with a specific part. A wrist type pulse wave detection watch comprises: a pulse wave measuring unit(200) increasing the region of a piezoelectric pulse wave sensor contacted with the radial artery of a wrist and measuring acceleration pulse wave or pulsating; and a pulse wave watch main body(100) in which the information to the measured acceleration pulse wave or pulsating is stored and indicated. A pulse wave measuring unit comprises: a band(210) pressing the wrist; an airbag(220) expanded with air injected through an air hose(222); and a piezoelectric pulse wave sensor(230) which is contacted in the radial artery of the wrist and measures the acceleration pulse wave or pulsating.

Description

Wrist type watch for sensing pulse wave

The present invention relates to a wrist-type pulse wave detection watch, and more particularly, to a wrist-type pulse wave detection watch for measuring the acceleration pulse wave or pulsation of the human body.

The pulse wave is a waveform recording of the heart wall and the large vessel beats according to the beating heart, of which the expansion / contraction caused by pressure changes in the peripheral arteries of the fingertip, toe or earlobe is called volumetric pulse wave. The expansion / contraction of peripheral blood vessels is called guided volume pulse wave.

Since the minute change of the guide volume pulse wave itself is not obvious, the second derivative is transformed into an acceleration type graph, and it is called an acceleration pulse wave that clearly shows the difference. 1 is a graph illustrating the waveforms of the guiding volume pulse wave and the acceleration pulse wave, in which a) of FIG. 1 is a waveform diagram of the guiding volume pulse wave, and b) of FIG.

On the other hand, the wrist-type pulse wave detection watch is a device for measuring the pulsation or pulse wave of the radial artery, and the sensor for measuring the pulsation or pulse wave includes a semiconductor method, a press method, an optical method and a piezoelectric method.

Optical pulse wave sensor has the advantage of being able to measure pulse wave stably with light emitting part and receiving part by measuring with light, but on the other hand, it is difficult to miniaturize due to its large volume, high power consumption and natural light That is, there is a disadvantage that the measurement is not good when measured from the outside. In addition, the pulse wave sensor of the semiconductor type has a disadvantage in that the power is consumed by measuring the resistance change when the pressure is given. In addition, the pulse wave sensor of the press method is also called a pulse wave sensor of the pneumatic method, there is a disadvantage that the bulky. In addition, the piezoelectric pulse wave sensor operates on the principle similar to that of the press type pulse wave sensor, and the piezoelectric pulse wave sensor does not consume power of the sensor itself, can be miniaturized, and can be used anywhere.

On the other hand, the pulse wave measuring device according to the prior art has been developed for home or medical use, not portable, such pulse wave measuring instrument is a necessary tool for the health of blood pressure patients, atherosclerosis patients, athletes, etc. It is used to check the patient's health by measuring the pulsation.

However, since a pulse wave measuring device according to the related art is difficult to use, a patient has to visit a hospital at regular intervals and check his or her blood pressure or pulse wave from a nurse.

On the other hand, as a related art, Korean Patent Application No. 2003-7005025 discloses a wrist-type digital blood pressure monitor named "apparatus for monitoring blood pressure", and detects pulsations or pulse waves, or measures blood pressure. It is characterized by. This wrist-type digital blood pressure monitor will be described with reference to FIGS. 2 and 3.

Figure 2 is a perspective view of a wrist-type digital blood pressure monitor according to the prior art, Figure 3 is a block diagram of a pressure sensor.

Referring to FIG. 2, the wrist-type digital blood pressure monitor according to the related art may include a pressure sensor 10, a blood pressure monitor body 20, and a band 30 and 40.

The pressure sensor 10 protrudes from the armbands 30 and 40 and contacts the radial artery of the wrist to measure blood pressure or pulsation, and the blood pressure or pulsation measured by the pressure sensor 10 is the blood pressure monitor body 20. It is stored in the memory or displayed through the display unit under the control of the microcomputer.

Referring to FIG. 3, a pressure sensor 10 according to the prior art has a transducer 11 which generates a voltage output in response to a pressure change acting on a diaphragm 12. At this time, the plunger 13 is attached near the diaphragm 12 of the transducer 11.

The plunger 13 is a specially designed hemispherical component made of metal. The plunger 13 is placed on the diaphragm 12 of the transducer 11 to substantially cover the bottom of the transducer 11. The plunger 13 is pushed into the wrist to partially occlude the radial artery. The plunger 13 captures the transmission of the beating of the radial artery even though the wearer's hand is in various positions.

Between the diaphragm 12 and the plunger 13 is a layer of gel 14 that filters out and removes interference and abrupt changes due to unnatural movement. The gel 14 also buffers the noise ratio. The depth of the plunger 13 is designed to occlude less than half the diameter of the radial artery when the wrist is easily wound on most normal wrists.

However, according to the related art, as shown in FIG. 1, since the pressure sensor 10 is always protruding, the median nerve of the carpal tunnel is always compressed and worn within several minutes. Your fingers can numb. As a result, the hands or fingers can swell and cause additional congestion. In other words, the sensor is always attached to the arteries and the pressure is applied at the same time, sometimes blood can not pass through, jeopardy phenomenon may occur. Accordingly, there is a problem that not only greatly affect the measurement signal but also may be harmful to the wearer.

The technical problem to be solved by the present invention is to raise or lower the piezoelectric pulse wave sensor protruding from the armband in order to contact the radial artery of the wrist, thereby preventing the numbness and accurately detect the acceleration pulse wave or pulsation It is to provide a wrist-type pulse wave detection watch that can be.

Another technical problem to be solved by the present invention for solving the above-mentioned problems is to wear comfortably as usual, such as a conventional watch, but when you need to swell the entire wrist instead of swelling the wrist like a conventional sphygmomanometer By pressing the arteries, it is to provide a wrist-type pulse wave detection watch that can reduce the noise and motion artifacts from the signal line shake of the piezoelectric pulse wave sensor.

As a means for achieving the above-described technical problem, the wrist-type pulse wave detection clock according to the present invention, by accelerating the position of the piezoelectric pulse wave sensor in contact with the radial artery of the wrist when measuring the acceleration pulse wave or pulsation of the human body, the acceleration pulse wave or pulsation Pulse wave measuring unit for measuring; And a pulse wave detecting watch body for storing and displaying information on the acceleration pulse wave or pulsation measured from the pulse wave measuring part, wherein the pulse wave measuring part comprises: a band connected to the pulse wave detecting watch and pressing the wrist; An airbag installed on the armband and expanding in response to air injected through an air hose; And a piezoelectric pulse wave sensor disposed above the air bag and rising upward in response to the inflation of the air bag and measuring acceleration pulse waves or pulsations in contact with the radial artery of the wrist.

Here, the piezoelectric pulse wave sensor is characterized in that the rising or falling in the vertical direction in response to the expansion of the airbag, the position can be adjusted in the horizontal direction corresponding to the radial artery position of the wrist.

Here, the pulse wave measuring unit, the band lower plate for supporting the air bag; An elastic member disposed on an upper portion of the piezoelectric pulse wave sensor and stretched according to the rising of the piezoelectric pulse wave sensor; And a band upper plate coupled to the lower band of the band to form a housing, and wherein the resistor is disposed between the lower band of the band and the airbag, and a predetermined portion at which the piezoelectric pulse wave sensor and the elastic member is lifted is opened.

Here, the stretchable member is characterized in that the material is a good (span) material of good elasticity (span).

The pulse wave measuring unit may include: an air supply unit configured to provide air to the airbag through an air hose when measuring the acceleration pulse wave or pulsation; And it may further include an exhaust for discharging the air provided in the airbag.

Here, the air supply portion and the exhaust portion is formed on the armband, characterized in that to manually supply and discharge air to the air bag through the air hose.

Here, the air supply unit and the exhaust unit is characterized in that for automatically supplying and discharging air to the air bag through the air hose using a micro pump installed in the pulse wave detection watch body.

Here, the pulse measuring unit may further include a resistor whose resistance value is changed according to the air pressure in the airbag.

Here, the pulse measuring unit may further include a resistance value measuring circuit for outputting a control signal for adjusting the amount of air injected into the airbag in response to the changed resistance value of the resistor.

Here, the airbag and the air hose may be a urethane material.

According to the present invention, by raising and lowering the piezoelectric pulse wave sensor protruding from the armband in order to contact the radial artery of the wrist, it is possible to prevent numbness and to accurately detect the acceleration pulse wave or pulsation.

According to the present invention, instead of swelling the entire wrist as in a conventional blood pressure monitor, by swelling only the part with the radial artery and pressing the radial artery, noise due to signal line shaking of the piezoelectric pulse wave sensor can be reduced.

According to the present invention, motion artifacts can be reduced by reducing the shaking of the skin tissue by the airbag.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the wrist-type pulse wave detection watch according to an embodiment of the present invention will be described in detail.

As an embodiment of the present invention, the piezoelectric pulse wave sensor is disposed on a predetermined portion of the upper part of the air bag, and raised to the upper part in response to the inflation of the air bag, and then the wrist type capable of measuring the acceleration pulse wave or pulsation in contact with the radial artery of the wrist. A pulse wave detection watch is provided.

4 is a perspective view of a wrist-type pulse wave detection watch according to an embodiment of the present invention.

Referring to FIG. 4, the wrist-type pulse wave detecting watch according to the exemplary embodiment of the present invention includes a pulse wave detecting watch main body 100 and a pulse wave measuring unit 200, and the pulse wave detecting watch main body 100 includes an operation unit 130. ) And the display unit 140, wherein the operation unit 130 may be a button, and the display unit 140 may be an LCD display window. In addition, the pulse wave measuring unit 200 may include a armband 210, an airbag 220, a piezoelectric pulse wave sensor 230, an elastic member 240, a resistor 280, and the like.

The pulse wave detecting watch body 100 stores information about the pulse wave or pulsation measured by the pulse wave measuring unit 200 in a memory or displays it on the LCD display window 140.

The pulse wave measuring unit 200 measures the acceleration pulse wave or pulsation by raising the position of the piezoelectric pulse wave sensor 230 in contact with the radial artery of the wrist when measuring the acceleration pulse or pulsation of the human body.

The arm 210 of the pulse wave measuring unit 200 is connected to the pulse wave detection watch body 100, and serves to press the wrist.

The airbag 220 is installed on the armband 210 and expands in response to the air injected through the air hose 222. Here, the airbag 220 and the air hose 222 may be a urethane material.

The resistor 280 is disposed below the airbag 220, and contacts the lower portion of the fixed arm 210 in response to the expansion of the airbag 220. The air pressure of the airbag 220 may be adjusted by outputting a control signal corresponding to the changed resistance value.

The piezoelectric pulse wave sensor 230 is disposed above the airbag 220, rises upward in response to the expansion of the airbag 220, and measures acceleration pulse waves or pulsations in contact with the radial artery of the wrist. That is, the piezoelectric pulse wave sensor 230 may be raised or lowered in the vertical direction in response to the expansion of the airbag 220 and may be adjusted in the horizontal direction in correspondence with the radial artery position of the wrist.

The elastic member 240 is disposed above the piezoelectric pulse wave sensor 230, that is, the upper part of the arm 210, and is stretched according to the rising of the piezoelectric pulse wave sensor 230, and the elastic member 240 is elastic. It may be a good span material of the material.

On the other hand, Figure 5 is a view for explaining the operation of the piezoelectric pulse wave sensor of the wrist-type pulse wave detection watch according to an embodiment of the present invention.

Referring to FIG. 5, in the wrist-type pulse wave detection watch according to an exemplary embodiment of the present invention, the piezoelectric pulse wave sensor 230 is not raised before the acceleration pulse wave or pulsation is measured, and the wrist type pulse wave detection watch is not in contact with the radial artery of the wrist. to be. In order to measure the acceleration pulse wave or pulsation, air is injected into the airbag 220 through the air hose 222, and the airbag 220 expands to open the piezoelectric pulse wave sensor 230 disposed on the airbag 220. Raise in the vertical direction to contact the radial artery of the wrist.

In this case, the piezoelectric pulse wave sensor 230 may be adjusted to move in the horizontal direction because the thickness of the wrist or the position of the radial artery may be different for each wearer.

Therefore, after the acceleration pulse wave or the pulsation is measured using the piezoelectric pulse wave sensor 230, the piezoelectric pulse wave sensor 230 returns to its original position by discharging the air in the airbag 220.

On the other hand, Figure 6 is a block diagram of a wrist-type pulse wave detection watch according to an embodiment of the present invention.

Referring to FIG. 6, the wrist-type pulse wave detecting watch according to an exemplary embodiment of the present invention includes a pulse wave detecting watch main body 100 and a pulse wave measuring unit 200, and the pulse wave detecting watch main body 100 includes a microcomputer 110. The power supply unit 120 may include, but is not limited to, a power supply unit 120, an operation unit 130, a display unit 140, a memory 150, and a motor pump 160.

First, when power is applied to the power supply unit 120, the acceleration pulse wave or pulsation is measured through the piezoelectric pulse wave sensor 230 in the pulse wave measuring unit 200.

Here, the pulse wave measuring unit 200 is provided to the air supply unit 260, which provides air to the air bag 220 through the air hose 222, and the air bag 220 at the time of measuring the acceleration pulse wave or pulsation It may include an exhaust unit 270 for discharging air, the air supply unit 260 and the exhaust unit 270 is formed on the armband 210, the air bag through the air hose 222 manually It is possible to provide and discharge air to the 220, and also to provide air to the airbag 220 through the air hose 222 automatically using a micro pump installed in the pulse wave detection watch body 100 and It can also be discharged.

Data corresponding to the acceleration pulse wave or pulsation measured by the pulse wave measuring unit 200 is transmitted to the FPCB 250 through the FPCB signal line 232 connected to the piezoelectric pulse wave sensor 230, and the signals are pulse wave detection watch body The memory may be stored in the memory 150 through the microcomputer 110 in the 100, or displayed through the display unit 140.

The microcomputer 110 is controlled by manipulation of a button of the operation unit 130 installed outside the housing, and compares the information about the acceleration pulse wave and the pulsation detected by the piezoelectric pulse wave sensor 230 with the information previously stored in the memory 150. Analyze and extract health status. That is, the microcomputer 110 measures the guiding volume pulse wave of the radial artery and performs the second derivative, and then converts it into a graph in the form of acceleration.

Further, the operation unit 130 may be a button type switch module provided with more than one connected switches, each of which is connected to a resistor.

The display unit 140 displays information on the acceleration pulse wave and the pulsation output from the microcomputer 110.

The memory 150 stores information on symptoms or health conditions according to the acceleration pulse wave or the pulsation state, and stores information on the acceleration pulse wave and pulsation detected by the piezoelectric pulse wave sensor 230. In addition, a predetermined program is stored in the memory 150, and such a program analyzes information such as acceleration pulse wave or pulsation measured under the control of the microcomputer 110 so that a user may know and compare it with a state of health.

The motor pump 160 may be installed in the pulse wave detection watch body 100 to inject air into the airbag 220.

The piezoelectric pulse wave sensor 230 includes an amplifier and a bridge sensor, and the result detected by the piezoelectric pulse wave sensor 230 is amplified by the amplifier, and at this time, the voltage may be output by the bridge sensor. The bridged sensor is also connected to an analog / digital conversion unit having a plurality of amplifiers, resistors, and capacitors. Since the circuit of these electronic devices is the same as a general analog / digital conversion circuit, the structure thereof is not described here.

Specifically, in the wrist-type pulse wave detection watch according to an embodiment of the present invention, for example, the power supply unit 120 may use a 3.7V lithium ion or lithium polymer battery. In addition, the measurement time of the wrist-type pulse wave detection clock is 30 sec, and the pulsation of about 30 to 160 times / minute can be measured. In addition, the pressure of the air bag is measured at a pressure of 80 ~ 100mmHg, wherein the pressure can be calculated as the resistance value of the resistor. Here, since the calculation of the resistor is the same as that of a general analog / digital conversion circuit, the structure thereof is not described here.

Operation of the wrist-type pulse wave detection watch according to an embodiment of the present invention is as follows.

First, when the automatic function is used, the display unit 140 is changed from the clock to the pulse wave measurement, and if the button operation unit 130 is lightly pressed in the non-moving range if possible, the motor pump 160 operates, and accordingly within the armband 210. The airbag 220 swells, while the piezoelectric pulse wave sensor 230 measures the pulse wave and the pulse rate (heart rate per minute) while the motor pump 160 is maintained for about 30 seconds.

Then, the acceleration pulse wave and the pulsation number measured on the display unit 140 are displayed. Next, the motor pump 160 is automatically turned off after 30 seconds due to the timer operation. In this case, since the acceleration pulse wave and the pulsation are stored in the memory 150, the user can continuously check the pulse wave and the pulsation on the display unit 140.

7 is a diagram illustrating a type of acceleration pulse wave detected in a piezoelectric pulse wave sensor according to an embodiment of the present invention.

Referring to FIG. 7, the acceleration pulse wave can know the vascular age according to the shape of the waveform, and is classified into six types of A to F types according to the shape of the waveform. Type A is in the shape of teenagers in their 20s and has a good vascular condition, and the vascular condition worsens as they go to B, C, D, E, and F. Usually, due to exercise or self-care, there may be people younger than the actual age. Can be. As shown in the figure, the user can measure his acceleration pulse wave waveform, and then check his condition.

On the other hand, Figure 8 is an exploded perspective view of the pulse wave measuring unit of the wrist-type pulse wave detection watch according to an embodiment of the present invention.

Referring to FIG. 8, the pulse measuring unit 200 of the wrist-type pulse wave detecting watch according to an embodiment of the present invention includes a band upper plate 211, an air bag 220, a piezoelectric pulse wave sensor 230, and a resistor 280. , The elastic member 240 and the band lower plate 212, and the band lower plate 212 is formed of a hard material supporting the airbag 220, and the band upper plate 211 is the band lower plate 212. In combination with the to form a housing, the predetermined portion is opened so that the piezoelectric pulse wave sensor 230 and the stretching member 240 is raised. Here, reference numeral A denotes a portion where the expansion and contraction member 240 is opened, and reference numeral B denotes a predetermined portion of the upper portion of the airbag 220 in which the piezoelectric sensor 230 is disposed.

9 is a diagram illustrating a manual airbag mechanism according to an embodiment of the present invention.

9, the manual airbag mechanism for manually injecting and discharging air into the airbag 220 according to an exemplary embodiment of the present invention presses the air supply unit 260 to inject air into the airbag 220. That is, the air is injected in the same principle as the pump.

In addition, when the exhaust unit 270 is pressed, the blocked hole is opened and air is discharged from the airbag 220 to the outside.

10 is a diagram illustrating an automatic airbag mechanism according to an embodiment of the present invention.

Referring to FIG. 10, the automatic airbag mechanism for automatically injecting and discharging air into the airbag 220 according to an embodiment of the present invention may include a resistance value measuring circuit 290 and micro pumps 260 and 270. For example, the micropump may be disposed in the pulse wave detection watch body 100. For convenience, since the micropump includes both the air supply unit 260 and the exhaust unit 270, the same reference numerals will be used.

The resistance value measuring circuit 290 may adjust the amount of air injected into the airbag 220 in response to the resistance value of the resistor 280 changed according to the air pressure in the airbag 220. 260, 270).

The configuration of the wrist-type pulse wave detection watch micropumps 260 and 270 includes a motor 370 in which rotational power is provided and an eccentric rotation shaft 371 is formed, and the motor 370 is coupled to compressed air. The upper plate 380 having a discharge port formed therein, the upper plate 380 is installed to be lifted and lowered by the eccentric rotation shaft 71 of the motor 370 and discharges compressed air at one end. A rubber pump 390 in which an exhaust valve 91 is formed, a lower plate 320 coupled to the upper plate 380 to maintain airtightness, and having a suction port input by the rubber pump 390. It may be installed in the middle of the lower plate 320 may include a suction valve 310, the air is sucked by the pumping of the rubber pump 390.

The action of the wrist watch micropump having the above-described configuration is performed as follows.

First, when the eccentric rotation shaft 371 rotates by the operation of the motor 370, the upper portion of the rubber pump 390 is inserted and protruded downward by the eccentric rotation shaft 371 to move up and down to pump.

When the rubber pump 390 moves upward by the rotation of the motor 370, the intake valve 310 is opened by the pressure inside the pump to suck outside air.

When the rubber pump 390 moves downward by the rotation of the motor 370, the air filled between the rubber pump 390 and the lower plate 320 is compressed, so that the suction valve 310 The exhaust valve 391 is opened while being closed to supply air to the airbag 220 through the connected rubber hose 222.

The above process is continuously repeated by the rotation of the motor 370, and the pumping is performed in a state of preventing air leakage.

Therefore, when a control signal is applied to the air supply unit 260 and the exhaust unit 270 according to an embodiment of the present invention, the air supply unit 260 first injects air into the arm 210 to apply pressure. Operation stops after pressure in the 100 mmHg range is applied. After about 30 seconds have passed, the exhaust unit 270 is automatically opened and exhausted.

During such operation, the piezoelectric pulse wave sensor 230 transmits the pressure measured from the armband 210 to the oscillator in the FPCB 250, and the oscillator oscillates according to the measured pressure. The microcomputer 110 uses the vibration of the oscillator. ) Detects the acceleration pulse wave or pulsation of the patient and stores it in the memory 150.

As a result, according to the embodiment of the present invention, after the piezoelectric pulse wave sensor is raised upward in response to the inflation of the airbag, the acceleration pulse wave or the pulsation is measured by contacting the radial artery of the wrist, thereby preventing the nudging phenomenon and accurately accelerating the acceleration. Pulse wave or pulsation can be measured.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a graph illustrating waveforms of guided volume pulses and acceleration pulse waves.

2 is a perspective view of a wrist-type digital blood pressure monitor according to the related art.

3 is a block diagram of a pressure sensor according to the prior art.

4 is a perspective view of a wrist-type pulse wave detection watch according to an embodiment of the present invention.

5 is a view for explaining the operation of the piezoelectric pulse wave sensor of the wrist-type pulse wave detection watch according to an embodiment of the present invention.

6 is a diagram illustrating a type of acceleration pulse wave detected in a piezoelectric pulse wave sensor according to an embodiment of the present invention.

7 is a block diagram of a wrist-type pulse wave detection watch according to an embodiment of the present invention.

8 is an exploded perspective view of the pulse wave measuring unit according to the embodiment of the present invention.

9 is a diagram illustrating a manual airbag mechanism according to an embodiment of the present invention.

10 is a diagram illustrating an automatic airbag mechanism according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

100: pulse wave detection clock main body 200: pulse wave measuring unit

110: microcomputer 120: power supply

130: operation unit 140: display unit

150: memory 160: motor pump

210: armband 211: band tops

212: lower band 220: airbag

222: air hose 230: piezoelectric pulse wave sensor

240: stretchable member 250: FPCB

260: air supply unit 270: exhaust unit

280: resistor 290: resistor measurement circuit

Claims (10)

Pulse wave measuring unit for measuring the acceleration pulse or pulsation by raising the position of the piezoelectric pulse wave sensor in contact with the radial artery of the wrist when measuring the acceleration pulse or pulsation of the human body; And Pulse wave clock body for storing and displaying information about the acceleration pulse wave or pulsation measured from the pulse wave measuring unit To include, the pulse wave measuring unit, A wand which is connected to the pulse wave watch body and presses the wrist; An air bag installed on the armband and expanding in correspondence with the air injected through the air hose; And A piezoelectric pulse wave sensor disposed above the air bag and rising upward in response to the inflation of the air bag and measuring acceleration pulse waves or pulsations in contact with the radial artery of the wrist. Wrist type pulse wave detection watch comprising a. The method of claim 1, The piezoelectric pulse wave sensor is a wrist-type pulse wave detection watch, characterized in that the rising or falling in the vertical direction in response to the expansion of the air bag, the position can be adjusted in the horizontal direction corresponding to the radial artery position of the wrist. The pulse wave measuring unit of claim 1, A lower band for supporting the air bag; An elastic member disposed on an upper portion of the piezoelectric pulse wave sensor and stretched according to the rising of the piezoelectric pulse wave sensor; And A band upper plate which is combined with the lower band of the band to form a housing, and a predetermined portion in which the piezoelectric pulse wave sensor and the elastic member are lifted is opened. Wrist-type pulse wave detection watch further comprising. The method of claim 3, The stretchable member is a wrist-type pulse wave detection watch, characterized in that the elastic material is good (span) material. The pulse wave measuring unit of claim 1, An air supply unit providing air to the airbag through an air hose when the acceleration pulse wave or pulsation measurement is performed; And An exhaust unit for discharging air provided to the airbag Wrist-type pulse wave detection watch further comprising. The method of claim 5, The air supply unit and the exhaust unit are formed on the armband, wrist-type pulse wave detection watch, characterized in that to manually supply and discharge air to the air bag through the air hose. The method of claim 5, The air supply unit and the exhaust unit wrist-type pulse wave detection clock, characterized in that for automatically supplying and discharging air to the air bag through the air hose using a micro pump installed in the pulse wave detection watch body. The method of claim 1, The pulse measuring unit, the wrist-type pulse wave detection watch further comprises a resistor that changes the resistance value in accordance with the air pressure in the airbag. The method of claim 8, The pulse measuring unit further includes a resistance value measuring circuit for outputting a control signal for adjusting the amount of air injected into the air bag in response to the changed resistance value of the resistor body. The wrist-type pulse wave detection watch according to claim 1, wherein the airbag and the air hose are made of urethane.

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